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Download

Install & configure

Screenshots

Facts

How to buy?

Features

Specifications

Documentation

Example projects

Softphone, webphone development

Learn about how you can create high quality softphone or webphone applications easily with Ozeki VoIP SDK.

PBX development

Learn about how you can create a reliable, high performance PBX system with Ozeki VoIP SDK.

Callcenter & CRM development

Learn about how you can create your own callcenter or CRM solution for your business' needs with Ozeki VoIP SDK.

Mobile development

Learn about how you can create your own VoIP application for tablet PCs, smartphones or other portable devices with Ozeki VoIP SDK.

Prerequisites

  • OS: Windows 8,7,Vista,200x,XP
  • Visual Studio 2010, Visual Studio 2008
  • .NET Framework 3.5 SP1, 4.0 or newer
  • 1 GHz CPU
  • 1 GB RAM
  • 200 MB free disk space

Outstanding compatibility

1

Supported Protocols

Protocols supported by Ozeki VoIP SDK:

3

Supported codecs

Codecs supported by Ozeki VoIP SDK:

Telephony features

Ozeki VoIP SDK supports all the basic and advanced telephony features, full list of them can be found here.

Supported codecs

Ozeki VoIP SDK supports all the codecs used in VoIP communications. List of the codecs can be found here.

Audio features

Ozeki VoIP SDK has extended audio features to ensure voice quality. These features' list can be found here.

Video features

Ozeki VoIP SDK has extended video features to ensure video quality. These features' list can be found here.

Tools provided

Supported VoIP service providers

Ozeki VoIP SDK is compatible with a wide range of VoIP service providers. Step-by-step configuration guides can be found here:

Peer to peer calls

Ozeki VoIP SDK supports peer to peer calls. The description of this method can be found here.

Trial version

1

Download and install the demo version of Ozeki VoIP SIP SDK to test its functions. The demo comes with 56 example projects which lets you evaluate and understand the use of Ozeki VoIP SDK functionalities.

2

The demo version has no limitations in the number of simultaneous calls. After the 4th call, one of every four calls plays a demo notification message. Another limitation is the time limit of 20 days for evaluation

3

You only need to buy the software license once, optional technical support and version update service is available later. You can request a quotation here. You can also find our FAQ on licensing here.

4

Trial version can be easily upgraded with your purchased license to full version without any uninstallation. Read more here.

On-line manual

You can find articles about VoIP technology and VoIP development with Ozeki VoIP SDK here.

On-line API documentation

The Ozeki VoIP SIP class library documentation can be found here describing all the tools you can use in your application.

Product datasheet

Ozeki VoIP SDK datasheet containing all the information related to the Ozeki VoIP SIP SDK product can be found here.

Download information

Information about the latest versions can be found here.

Supported RFCs

Ozeki VoIP SDK implements the following standards:

Softphone examples
Softphone for audio calls

This demo shows how you can develop a simple softphone for audio calls easily.

Softphone for video calls

This demo shows how you can develop a simple softphone for video calls effectively.

Many simultaneous calls

This demo shows how you can control multiple simultaneous calls with your softphone.

Advanced softphone features

This demo shows the usage of the advanced softphone features provided by Ozeki VoIP SDK.

Automated dialing & call status handling

This demo shows how you can develop a softphone with automated dialing and call status handling.

PBX, Callcenter, IVR examples
A simple PBX

This demo shows how you can develop a simple PBX system with the basic features.

An advanced PBX

This demo shows how you can develop a more complex PBX system with advanced features.

A simple callcenter server

This demo shows how to create a simple callcenter server with simple call distribution.

An advanced callcenter server

This demo shows how to create an advanced callcenter server with a more complex call distribution algorithm.

An IVR system

This demo shows how you can create an IVR (interactive voice response) system with Ozeki VoIP SDK.

Webphone & Mobile examples
Adobe Flash webphone

This demo shows how you can create an Adobe Flash webphone with Ozeki VoIP SDK.

Silverlight webphone

This demo shows how you can create a Silverlight webphone with Ozeki VoIP SDK.

Android phone

This demo shows how you can develop your own VoIP application for Android clients.

iPhone & iPad phone

This demo shows how you can develop your own VoIP application for iPhone or iPad (iOS) clients.

Windows mobile phone

This demo shows how you can develop your own VoIP application for Windows Mobile clients.